I have an 11 year chin that has had seizures since he jumped from my hands as a kit. He struck is head on a bucket before landing on the floor. My first kit too, I was some upset.
He`s fine and only has them now when excited or frightened. So as long as I keep him in his routine he does very well.
I have never treated him but I think that depends on the type and cause of the seizures.
If it was caused by over exertion or over heating it may never happen again.
If it`s a calcium problem you`ll have to increase his calcium in take.
Finding out what caused it is the hardest part.